H04L 12/52
Using time division techniques
Official title: using time division techniques (in digital transmission systems H04L5/22)
H04L12/52 (Using time division techniques) appears on 128 US grants and 26 published applications in this corpus.
Search patents in H04L- Granted patents
- 128
- Published applications
- 26
- Assignees
- 69
- Inventors
- 245
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 6 | 0 |
| 1982 | 2 | 0 |
| 1983 | 6 | 0 |
| 1984 | 5 | 0 |
| 1985 | 8 | 0 |
| 1986 | 3 | 0 |
| 1987 | 8 | 0 |
| 1988 | 7 | 0 |
| 1989 | 5 | 0 |
| 1990 | 7 | 0 |
| 1991 | 5 | 0 |
| 1992 | 6 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 1 |
| 2007 | 1 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 3 | 1 |
| 2011 | 0 | 0 |
| 2012 | 3 | 2 |
| 2013 | 2 | 2 |
| 2014 | 0 | 1 |
| 2015 | 2 | 4 |
| 2016 | 2 | 1 |
| 2017 | 4 | 0 |
| 2018 | 0 | 2 |
| 2019 | 2 | 1 |
| 2020 | 1 | 1 |
| 2021 | 2 | 1 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Terminal for performing repetition transmission of an uplink signal using an uplink shared channel for a repetition transmission type a of the uplink shared channel28 Apr 2026US 12,615,624 B2Ntt Docomo, Inc.
- Data sending method and forwarding device31 Oct 2023US 11,805,053 B2Huawei Technologies Co., Ltd.
- Data sending method and forwarding device28 Dec 2021US 11,212,222 B2Huawei Technologies Co., Ltd.
- Data sending method and forwarding device26 Jan 2021US 10,904,141 B2Huawei Technologies Co., Ltd.
- Programmable logic switch and system15 Dec 2020US 10,868,690 B1
- Terminal1 Aug 2024US 2024/0260009 A1Ntt Docomo, Inc.
- Data Sending Method and Forwarding Device24 Mar 2022US 2022/0094636 A1Huawei Technologies Co., Ltd.
- Data Sending Method and Forwarding Device22 Apr 2021US 2021/0119912 A1Huawei Technologies Co., Ltd.
- Programmable logic switch and system10 Dec 2020US 2020/0389336 A1
- Data Sending Method and Forwarding Device9 May 2019US 2019/0140943 A1Huawei Technologies Co., Ltd.
Most cited
By later US patents
- Digital crossbar switch258US 4,852,083 ATexas Instruments Incorporated · 1989
- Data line interface for a time-division multiplexing (TDM) bus106US 4,485,470 ARolm Company · 1984
- High speed network switch102US 5,604,735 AFinisar Corporation · 1997
- Method and arrangement for transmitting data between a central data station and a plurality of data terminals in a local area network98US 5,107,260 ASiemens Aktiengesellschaft · 1992
- Matrix switch system75US 4,683,564 AData Switch Corporation · 1987